Side element of a shoe upper



FIG. 1 is a top plan view of a shoe upper having a side element showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a rear elevational view thereof.

The broken line showing of the remainder of the shoe upper, including the perforations and the lacing element, is for illustrative purposes and forms no part of the claimed design. 

The ornamental design for a side element of a shoe upper, as shown and described. 